“Testosterone and Vitamin D Deficiency As Risk Factors for Hip Fracture Elderly Male Patients: Time for Vitamin D and Testosterone Replacement”. Global Journal of Medical Research 16, no. F4 (September 8, 2016): 15–18. Accessed August 13, 2026. https://medicalresearchjournal.org/index.php/GJMR/article/view/1144.